Reactor and process for converting alkanes to alkenes
    2.
    发明申请
    Reactor and process for converting alkanes to alkenes 有权
    将烷烃转化为烯烃的反应器和工艺

    公开(公告)号:US20050124841A1

    公开(公告)日:2005-06-09

    申请号:US10731748

    申请日:2003-12-09

    摘要: The invention relates to a reactor comprising two reaction zones and processes for the production of alkenes from alkanes. A first reaction zone includes a combustion catalyst, and a second reaction zone comprises a heating zone in thermal contact with the first reaction zone. One process comprises generating heat and an effluent by the combustion of a fuel with oxygen in the first reaction zone; passing an alkane feed through the heating zone of the second reaction zone such that the alkane feed absorbs a sufficient amount of the heat generated in the first reaction zone to initiate the conversion of alkanes to alkenes in the second reaction zone. In other embodiments, the effluent comprises oxygen, and the second reaction zone excludes a catalyst; alternatively, the effluent is substantially free of oxygen, and the second reaction zone comprises a supplemental oxygen feed and may or may not include a catalyst.

    摘要翻译: 本发明涉及一种包含两个反应区的反应器和用于从烷烃生产烯烃的方法。 第一反应区包括燃烧催化剂,第二反应区包括与第一反应区热接触的加热区。 一个方法包括通过在第一反应区中燃烧具有氧气的燃料产生热量和流出物; 使烷烃进料通过第二反应区的加热区,使得烷烃进料吸收足够量的在第一反应区中产生的热,以引发烷烃转化为第二反应区中的烯烃。 在其它实施方案中,流出物包含氧,第二反应区排除催化剂; 或者,流出物基本上不含氧,并且第二反应区包含补充的氧气进料,并且可以包括或可以不包括催化剂。

    Process for the production of olefins from alkanes with carbon monoxide co-feed and/or recycle
    3.
    发明申请
    Process for the production of olefins from alkanes with carbon monoxide co-feed and/or recycle 审中-公开
    从具有一氧化碳共进料和/或再循环的烷烃生产烯烃的方法

    公开(公告)号:US20050124840A1

    公开(公告)日:2005-06-09

    申请号:US10730468

    申请日:2003-12-05

    IPC分类号: C07C5/333 C07C5/48

    摘要: A method for producing olefins by oxidative dehydrogenation. In one embodiment, the method comprises feeding a feed to a reactor comprising a catalyst, wherein the feed comprises oxygen, and a carbonaceous material comprising carbon monoxide and a light hydrocarbon; contacting the feed to the catalyst in the reactor; and converting at least a portion of the light hydrocarbon with oxygen to at least one olefin, while simultaneously converting at least a portion of the carbonaceous material with oxygen to carbon dioxide to form a product stream comprising the at least one olefin and by-products. The by-products comprise at least carbon monoxide. In other embodiments, at least a portion of the by-products, which comprise carbon monoxide, is recycled to the reactor. In further embodiments, the light hydrocarbon feed comprises ethane, and the olefin comprises ethylene.

    摘要翻译: 一种通过氧化脱氢制备烯烃的方法。 在一个实施方案中,所述方法包括将进料加入到包含催化剂的反应器中,其中所述进料包含氧,以及包含一氧化碳和轻质烃的碳质材料; 使进料与反应器中的催化剂接触; 以及将至少一部分轻质烃与氧转化为至少一种烯烃,同时将至少一部分含碳材料用氧转化为二氧化碳以形成包含至少一种烯烃和副产物的产物流。 副产物至少包含一氧化碳。 在其他实施方案中,包含一氧化碳的至少一部分副产物被再循环到反应器中。 在另外的实施方案中,轻烃进料包括乙烷,烯烃包括乙烯。

    Electrochemical process for decomposition of hydrogen sulfide and production of sulfur
    4.
    发明申请
    Electrochemical process for decomposition of hydrogen sulfide and production of sulfur 有权
    用于硫化氢分解和硫的生成的电化学工艺

    公开(公告)号:US20060275193A1

    公开(公告)日:2006-12-07

    申请号:US11141915

    申请日:2005-06-01

    IPC分类号: B01D53/50 C01B17/00 H01M8/00

    CPC分类号: B01D53/52 C01B17/05

    摘要: The present invention includes a process for the removal of hydrogen sulfide from hydrogen sulfide gas containing gaseous streams. In one embodiment, the process comprises feeding a sulfide ion containing solution to an oxidation unit. The method further comprises feeding an oxidizing gas to the oxidation unit and contacting the sulfide ion containing solution with the oxidizing gas under sufficient conditions to form a polysulfide solution comprising polysulfide and hydroxide ions. In addition, the process comprises mixing the polysulfide containing solution with a hydrogen sulfide gas under conditions sufficient for absorption of hydrogen sulfide and precipitation of sulfur from the polysulfide containing solution. In some embodiments, the process comprises separating the precipitated sulfur from liquid.

    摘要翻译: 本发明包括从含有气流的硫化氢气体中除去硫化氢的方法。 在一个实施方案中,该方法包括将含硫化物离子的溶液进料到氧化单元。 该方法还包括将氧化气体进料至氧化装置,并在足够的条件下使含有硫化物离子的溶液与氧化气体接触以形成包含多硫化物和氢氧根离子的多硫化物溶液。 此外,该方法包括在足以吸收硫化氢和从含多硫化物溶液析出硫的条件下将含硫化物溶液与硫化氢气体混合。 在一些实施方案中,该方法包括将沉淀的硫与液体分离。